Invention Application
US20160044524A1 FINE-TIMING MEASUREMENT FOR TIMEOF-FLIGHT POSITIONING 审中-公开
用于时空定位的精确测量

  • Patent Title: FINE-TIMING MEASUREMENT FOR TIMEOF-FLIGHT POSITIONING
  • Patent Title (中): 用于时空定位的精确测量
  • Application No.: US14419921
    Application Date: 2013-12-27
  • Publication No.: US20160044524A1
    Publication Date: 2016-02-11
  • Inventor: Shani Ben-HaimGaby Prechner
  • Applicant: INTEL CORPORATION
  • International Application: PCT/US13/78116 WO 20131227
  • Main IPC: H04W24/10
  • IPC: H04W24/10 H04L12/26
FINE-TIMING MEASUREMENT FOR TIMEOF-FLIGHT POSITIONING
Abstract:
Embodiments of a system and method for establishing a physical location of a device are generally described herein. In some embodiments a device may include a wireless device configured to communicate with an access point through the use of a wireless protocol, and to perform a method for time-of-flight (ToF) positioning that includes a three-stage fine-timing measurement (FTM) procedure that includes: a first stage for negotiating comeback timing for a next FTM exchange, a second stage that includes performing a fine timing measurement exchange and optionally negotiating the comeback timing for the next fine timing measurement exchange, and a third stage that includes reporting and polling the timestamp of the previous fine timing measurement exchange and optionally performing an additional fine timing measurement stage. In some embodiments a module in a device may determine a range between the device and the access point or the one or more network devices.
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